Any of you know a good solution for this problem with cross-validation? @lakens @randal_olson @gwern http://stats.stackexchange.com/questions/213837/k-fold-cross-validation-nominal-predictor-level-appears-in-the-test-data-but-no … #rstats
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more